Even if your team does reserve a long or late period for system test, it is important in a Value Stream Map to distinguish between the time spent doing actual testing and the time fixing code.

就算团队为系统测试保留了很长或者晚期的时间，那么在价值流图中区分花在实际测试与花在代码修复上的时间就非常的重要了。

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Secular trend is the value of the variable tends to increase or decrease over a long period of time.

长期趋势是指变量的值在一个长时期内所呈现的增加或减少的趋势。

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Vibration amplitude value is not increasing for a long period running, problems are solved thoroughly for severe vibration, frequent accident and unsteady run of the compressors pipe network.

经长期运行后，振动点幅值无增大现象，根本解决了该机组管网振动严重、故障频繁、不能平稳运行等问题。

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We attempt to add value through our proprietary and time-tested research methodology, which presumes a long holding period over a complete market cycle.

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